Can-shearing machine.



o. oosBY. (JAN SHEARING MACHINE.

APPLICATION FILED 00T.,2. 1909.

Patented 0cc.18.191o.

2 SHEETS-SHEET 1.

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C. GOSBY. GAN SHEARING MACHINE.

unicum@ mm1) 0cm. 1909,

Patented Oct. 18,1910.

2 SHEETS-SHEET 2.

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CLARENCE COSBY, OF RICHMOND, VIRGINIA.

CAN-SHEARING MACHINE.

Specification of Letters Patent.

Patented Oct. 18, 1910.

Application led Uctcber 2, 1909. Serial No. 520,764.

To all whom it may concern:

Be it known that l, CLARENCE Coser, citizen of the United States,residing at Richmond, in the county of Henrico and State of Virginia,have invented certain new and useful Improvements in Gan-ShearingMachines, of which the following is a specification.

This invention is a machine for cutting off the heads of old cans, torecover the plates forming the side walls thereof and to prepare theparts of the can for further useful treat-ment.

The machine embodies means for feeding the cans, for shearing the headsor ends thereof and for flattening and cleaning the sheets aftershearing, and comprises a pair of fixed segmental cutters, and revolvingmandrels which carry the cans in contact with the cutters, as well asmeans for automatically feeding the cans to the mandrels, and forstripping or delivering the sheets therefrom after cutting, the partsbeing so arranged that the operations will be automatically performed,no hand work being required except possibly to supply the cans to thefeeding devices. Before being fed to the machine the cans will beslitted lengthwise by means unnecessary to describe here, said slitsbeing provided so that after the heads are sheared ofi' the sheetsforming the side walls of the can can be stripped from the mandrels.

The invention is illustrated in the accompanying drawings in which-Figure l is a side elevation of the machine. Fig. 2 is a section on theline AB of Fig. 1.

Referring specifically to the drawings, A indicates the base of themachine having pedestals F mounted thereon, which support the main shaftP which is provided with a driving pulley T, a sprocket S, and a spideror revolving head G, all fast thereon. The pedestals F have cap bearingsE which are extended upwardly to support the cross frame D which carriesthe upper shear by means of a housing C bolted thereto. This housing issubstantially segmental in shape and carries a pair of segmental shearblades or cutters N, by means of set screws O and Vplates A. The boltshold the blades in place, and the outer blade is adjustable lat- ;erallyby means of the opposite screws O to accommodate variation in the lengthof 'the cans. Bolts behind the blades enable them to be set up for wear.

The head or spider G, carried on the shaft P, has bearings H for a setof four mandrels K which are rotatable in said bearings and are alsorevoluble with the spider, and caps J hold the bearings H in place, saidcaps being bolted to the spider. The mandrels are located equaldistances apart, and the number may be varied if desired. Each mandrelhas fast thereon a gear Q arranged to mesh with segmental racks R as thespider revolves, the upper rack being supported by the frame D and thelower rack resting on the base A. The length of these racks issubstantially the same as that of the blades N. The lower set of bladesis mounted on the frame or casting D, resting on the base A, the bladesbeing held for adjustment by bolts and plates the same as abovedescribed. The lower set of blades is located diametrieally opposite theupper set, so that .each set operates during half a revolution.

rThe mandrels K are provided with fixed cirn cular shear blades M,between which are distance pieces L, and these shear blades copcratewith the blades N to out through the side walls of the cans near theheads thereof.

The shaft P is reduced at its outer end and is supported by a bearing Win a diagonal brace V bolted at its opposite ends to the housing C andthe frame B respectively. The brace V supports a cam X which has a camgroove in its outer surface to receive rollers Y connected by rods Y tolevers A. The levers A are fulcrumed to the ears of a head Z on theouter end of the shaft P, and the outer ends of the levers are connectedby slot and pin connections to plungers Z which carry cups C. Theplungers and connecting rods are supported and guided by a spider B faston the shaft P, and the plungers are so positioned that the cups are inline at all times with the mandrels K, and when the main shaft isrevolved the plungers and cups work in and out to place the cans on themandrels. The cups have the general shape of a scoop, open at the top toreceive a can, and at the end to transfer the same to the mandrels. Thecans are fed to the cups by means of inclined troughs D down which thecans roll, being supplied to the troughs in suliicient quantity by anydesired means. To automatically feed the cans one by one from eachtrough to the cups means are provided consisting of a lever P with arock shaft P` mounted across the chute or trough and carrying an arm Qwith fingers R at opposite ends depending into the chute and arrangedwhen operated to allow the escape of cans one by one. rIhe free ends ofthe levers P extend in position to be struck by the free ends of thearms of the spider B, said ends wiping under the ends of the leverswhereby they alternately lift and drop, and at each lift the lowerfinger R is raised permitting the lirstcan to drop into the cup then inposition to receive it at the end of the chute, the upper linger Rmeanwhile checking the succeeding cans.

At each end of the machine is a frame or housing E located in line withthe shears, and supporting a train of rolls l and brushes N, the shaftsof which are carried in slide bearings V, the rolls and brushes beingheld in contact with each other by springs U behind the upper bearings.The train of rolls and brushes is driven by means of gears indicated indotted lines at Z, and run by a sprocket chain S which passes around asprocket on the shaft N of the first brush and a sprocket S the shaft ofwhich is held by a bracket bearing T', said sprocket being driven bysprocket chain S driven by the sprocket S on the main shaft. Thesprockets S and chains S are duplicated at opposite sides of themachine, the shafts being connected by a chain belt S. The housing Ealso supports an arm F, fastened thereto by a pivot pin X. and the freeend of said arm carries a roller J and a smaller roller K, as well as acurved stripper L which is pivotally mounted on the shaft of the rollerK.' rlhe arm F is free to swing to a limited extent so that the roller Jand the end of the stripper L will come in contact with the can bodycarried on the projecting end of the mandrel K, or rather on the spacingsleeve L mounted thereon. The roller J is driven at high speed by a gear20 on one of the first pair of rolls, meshing with a gear 21 on thestripping roll.

The operation of the machine is as follows: The cans after being slitdown the side seams are fed into the chutes from the floor above or someother elevated position and roll down the same until stopped by thefingers R. The main shaft P and parts carried thereby are driven counterclockwise as indicated by the arrovT in Fig. l. The outer end of one armof the spider B strikes and lifts the ends of the levers P', operatingthe escapement or feed to allow one can to pass into each of the cups Cat that time located adjacent the ends of the respective chutes. The camX then operates to advance the cups C inwardly, shoving the cans ontothe sleeves L, the transfer being eected during the period the mandrelis traveling from the chute to the beginning of the segmental shearblades. The cans remain supported on the blades M and as the spider Grevolves are brought against the shear blades N, at which instant therotation of the mandrels begins in consequence of the engagement of thegears Q with the racks R, and the revolution and rotation continues,shearing off the ends or heads of the cans which drop off. rIhe sheetforming the body of the can remains on the sleeve L and is brought intocontact with the roller J causing the same to spin or revolve inadirection toward the point of the stripper L which catches in the slotor slit, made as stated in the can bodies when the side seams are cutout before being fed to this machine, and the plate is stripped ofi' themandrel and passes between the rollers J and K to the series of rollersand brushes between which the plates or sheets pass, cleaning the sameof rust and dirt, and the sheets are finally delivered at the ends ofthe machine in a marketable condition, the sheets being bent to fiatshape as they pass between the rollers J and K.

What I claim as new is l. In a shearing machine, the combination of afixed curved blade, a rotatable mandrel provided with a blade andadapted to receive and support a tubular article thereon, and means torevolve the mandrel to bring the article to contact with the fixedblade.

2. In a shearing machine, the combination of fixed segmental bladesspaced apart, a rotary mandrel having spaced circular blades thereonarranged to coperate with said blades, said mandrel being adapted toreceive and support a tubular article thereon, and means to revolve themandrel in proximity to the xed blades, to shear the article betweensaid fixed and circular blades.

3. In a shearing machine, the combination of a pair of xed blades spacedapart, a rotary mandrel having a pair of spaced circular blades thereonarranged to coperate with said fixed blades, said mandrel being adaptedto receive and carry a tubular article thereon, and means to move t-hemandrel along and in proximity to the xed blades, to open the article.

t. In a shearing machine, the combination of a pair of fixed bladesspaced apart, a rotary mandrel having thereon a pair of spaced circularblades to coperate with said fixed blades, means to move the mandrelalong the fixed blades with its axis transverse to said blades, means tofeed tubular articles onto the mandrel before said movement, and meansto strip the articles from the mandrel after said movement.

5. In a shearing machine, the combination of segmental fixed blades, ashaft, a head thereon, a mandrel mounted for rotation in the head andhaving circular blades thereon arranged to coperate with said blades,the mandrel being free at one end to receive tubular articles thereonover said circular blades, means to rotate the shaft, whereby themandrel is revolved to bring the article in contact with the segmentalblades, and means to rotate the mandrel during' such contact.

6. In a shearing' machine, the combination of a fixed segmental blade, arotary mandrel revoluble within and adjacent to said blade, a circularblade on the mandrel, arranged to cooperate with said fixed blade whilethe mandrel is moving' along the same, means to automatically feedtubular articles in an endwise direction onto the mandrel while it isrevolving.v and means to automatically strip the articles from the.mandrel tangentially while it is revolvingl and after it passes thefixed. blade.

7. In a shearing' machine, the combination of a laterally traveling'mandrel. means to shear a tubular article thereon, means toautomatically feed such article onto the mandrel while itis in motion,and means to automatically deliver' the article from the mandrel afterbeing' sheared.

8. In a shearing machine, the combination of a revolving and rotatingmandrel, means to shear a tubular article thereon duringl a part of itsrevolution, means to automatically feed such article onto the mandrelduring' a prior part of its revolution, and means to deliver the articlefrom the mandrel during a subsequent part of its revolution.

9. In a shearing machine, the combination of a mandrel, means to shear atubular article thereon, means to feed such articles in succession ontothe mandrel, comprising' a cup reciprocating' in axial alinement withthe mandrel, means to operate the cup, and means to deliver the articlesfrom the mandrel after being' sheared.

10. In a shearing' machine, the combination of a rotary mandrel, meansto revolve the same in an annular path, means revoluble with the mandrelto feed tubular articles onto the same, means to shear such articlewhile on the mandrel, and means to deliver the same therefrom afterbeing sheared.

11. In a shearing machine, the combination of a shaft a rotary mandrelcarried thereon and revoluble with the shaft around the axis of thelatter, means carried by the shaft to feed tubular articles onto thesame, means to shear such an article while on the mandrel, and means tostrip the article therefrom after it is sheared.

12. Ina shearing' machine, the combination of a shaft, a rotary mandrelcarried thereon and revoluble with the shaft around the axis of thelatter, means carried by the shaft to feed tubular articles onto thesame including a cup reciprocating' in alinement with the axis of themandrel and toward and from the end thereof, means to shear such articlewhile on the mandrel, and means to deliver the article therefrom afterit is sheared.

13. In a shearing' machine, the combination of a shaft, a spiderthereon, a rotary mandrel mounted in said spider and revoluble therewitharound the axis of the shaft, said mandrel having a project-ing' endprovided with circular blades, segmental blades supported in position tocooperate with said blades as the mandrel revolves, and means to rotatethe mandrel while said blades are cooperating'.

` 14. In a shearing machine, the combination of a shaft,`a spiderthereon, a rotary mandrel mounted in said spider and revoluble therewitharound the axis of the shaft, said mandrel having a projecting endprovided with circular blades, segmental blades supported in position tocooperate with said blades as the mandrel revolves, and means to rotatethe mandrel while said blades are cooperating comprising' a gear on themandrel and a segmental raclr supported in position to engage said gearwhile said blades are in cooperation.

15. In a shearing' machine, the combina.- tion of a frame, a shaftrotatable therein, a rotary mandrel carried by the shaft and eccentricthereto, the axes of the shaft and mandrel being parallel, whereby theman drel is revolved around the shaft as the latter rotates, means toshear tubular articles on the mandrel during a part of its rotation, andmeans to automatically feed such articles onto the mandrel including aspider car ried by the shaft, a plunger mounted to reciprocate on thespider in axial alinement with the mandrel, said plunger beingrevoluble. Wit-h the spider, a cam fixed to the frame, and operativeconnections between the cam and the plunger constructed to reciprocatethe latter as the shaft is rotated, said plunger having a. device at theend adjacent the mandrel to receive the articles and deliver the same insuccession to the mandrel.

16. The combination of a revolving mandrel adapted to carry tubulararticles thereon, means to shear said articles during' a part of therevolution of the mandrel, a cup revoluble with the mandrel and movabletoward and from the same to place the articles thereon during' a part ofthe revolution of the mandrel, and means to intermittently feed sucharticles to the cup, including an inclined chute the lower end of whichprojects adjacent to the path of the cups.

17. rI`he combination of a reifolving mandrel, cups revoluble therewithand movable to and from the same in axial alinement to deliver tubulararticles onto the mandrel, a revolving' support for the cups, and meansto deliver such articles into the cups, including an inclined chute thelower end of which extends adjacent to the path of the cups, and anescapement cooperating with the chtite and having' an operating leverprojecting' into the path of said support.

1S. In a shearing machine, the combination of a revolving mandrel,adapted to carry a longitudinally slitted tubular article thereon, meansto shear the ends of the article While it is on the mandrel, and meansto strip the article from the mandrel after being' sheared, comprising aroller positioned to contact With the article during a part of therevolution of the mandrel, means to drive said roller, and a stripperhaving a projecting edge and located adjacent to the roller, andarranged to contact said edge With the article and enter the slitthereof, as the article is spun around by the roller.

19. The combination With a shearing machine for tubular articles, ofmeans to deliver said articles from the machine, cleaning rolls andbrushes located adjacent to the machine, and means to automaticallytransfer the articles from said delivering means to said rolls andbrushes. l

20. In a machine for recovering sheets from old cans, the combination ofmeans for shearing off the ends of the cans, means for automaticallyfeeding the old cans to the shears, means for iiattening and cleaningthe body sheets of the cans, and means for automatically delivering saidsheets from the shears to the cleaning and flattening 11163115.

21. In a shearing machine, the combination of a frame, a shaft therein,opposite pairs of spaced segmental blades mounted in the frame, a spideron the shaft, a series of rotary mandrels mounted in the spider andhaving ends projecting opposite to said blades, a pair of circularblades on each mandrel, arranged to cooperate with said blades, andmeans to rotate the mandrels While the blades are in coperation.

In testimony whereof, I affix my signature in presence of two Witnesses.

CLARENCE GOSBY.

Witnesses M. F. POLLARD, W. A. CHILDREY.

